diff options
Diffstat (limited to 'share/man/man9/kthread.9')
| -rw-r--r-- | share/man/man9/kthread.9 | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/share/man/man9/kthread.9 b/share/man/man9/kthread.9 index f1417140fa5..7a7ce18fa04 100644 --- a/share/man/man9/kthread.9 +++ b/share/man/man9/kthread.9 @@ -1,4 +1,4 @@ -.\" $OpenBSD: kthread.9,v 1.2 1999/09/05 16:23:11 espie Exp $ +.\" $OpenBSD: kthread.9,v 1.3 2000/10/12 18:06:00 aaron Exp $ .\" .\" Copyright (c) 1999 Marc Espie .\" All rights reserved. @@ -35,7 +35,7 @@ .Sh NAME .Nm kthread_create , .Nm kthread_exit , -.Nm kthread_create_deferred +.Nm kthread_create_deferred .Nd kernel threads. .Sh SYNOPSIS .Fd #include <sys/kthread.h> @@ -48,19 +48,20 @@ .Sh DESCRIPTION Kernel threads are system light-weight processes: cloned from process 0 (the swapper), sharing its memory map and limits, but with a copy of its -file descriptor table. They don't receive broadcast nor group signals and -they can't be swapped. +file descriptor table. +They don't receive broadcast nor group signals and they can't be swapped. .Pp Any process can call .Fn kthread_create -to create a kernel thread. The new process starts up executing +to create a kernel thread. +The new process starts up executing .Fa func with argument .Fa arg . -If -.Fa newpp -is not -.Dv NULL , +If +.Fa newpp +is not +.Dv NULL , it is filled with the address of the new process. .Fa fmt and the remaining arguments are used to name the process. @@ -72,21 +73,22 @@ with exit code .Pp Since the system has to be up and running for creating new processes, device drivers that want to create kernel threads early -(eg, at attach time) may use -.Fn kthread_create_deferred -instead. The system will call back the function +(e.g., at attach time) may use +.Fn kthread_create_deferred +instead. +The system will call back the function .Fa func with argument .Fa arg when it can create threads, so it is up to .Fa func to call -.Fn kthread_create +.Fn kthread_create at that point. .Sh SEE ALSO .Xr fork1 9 .Sh BUGS -There is currently no way to use +There is currently no way to use .Va ecode to any sensible purpose from .Fn kthread_exit . |